Nicolas Bouche - April 24, 2015

The role of gas flows in regulating star-forming galaxies

Galaxies form stars with low efficiencies, as on average only 10% of
the baryons are inside the haloes of galaxies. Galactic super-winds are
often invoked to explain this fundamental problem in galaxy formation.
Recently, galaxy scaling relations such as the main sequence between SFR
and M* and the MZR relation have opened new insights on understanding
the balance between accretion and outflows. I will review these aspects
in light of the most recent constraints on accretion and on outflows
using background quasars.